/in/l8.cpp: In function 'int main()':
/in/l8.cpp:65:13: error: 'gets' was not declared in this scope
     gets(str);
             ^
/in/l8.cpp:70:24: error: suggest parentheses around '&&' within '||' [-Werror=parentheses]
         if(str[i]>='0' && str[i]<='9' || str[i]=='.'){
            ~~~~~~~~~~~~^~~~~~~~~~~~~~
cc1plus: all warnings being treated as errors